champion Copy link Outline 1. prōpugnātor2. dēfensor3. dux, dŭcis (applicable to the chief or ringleader in any enterprise) • champion: 1. prōpugnātor: the defender of his father's rights, and the c., as it were, of his patrimony, paterni juris defensor, et quasi patrimonii p., Cic. 2. dēfensor: v. defender. 3. dux, dŭcis (applicable to the chief or ringleader in any enterprise): with him (Kaeso) as their c., hoc duce, Liv. 3, 11 (med.): v. captain.